The History of Route 66 - Stephen Mandrgoc and David Dunaway

           Building The Highways - Linda Hall Library

           Route 66: Departments of Transportation - National Park Service

           Route 66: Associations and Organizations - National Park Service

           H.R. 801 Route 66 National Historic Trail Designation Act - U.S. Department of the Interior, Office of Congressional and Legislative Affairs

           Travel Route 66 - National Park Service

           Route 66 1926 - 1945 - National Park Service

           Route "66" The Mother Road - Federal Highway Administration

           Creation of a Landmark: The Federal Aid Road Act of 1916 - Federal Highway Administration

           Highway History Bibliography: U.S. Route 66 - Federal Highway Administration

           U.S. Route 66 - Wikipedia

           National Old Trails Maps - Automobile Club of Southern California

           Bridges of Route 66 - Jim Ross

           National Old Trails Map - Automobile Club of Southern California

           PhD Theses and Other Publications
           Huddleston, John David, Good Roads for Texas: A History of the Texas Highway Department, 1917-1947, Texas A&M University, August 1981
           Corbett, William Paul, Oklahoma's Highways: Indian Trails to Urban Expressways, Oklahoma State University, 1982
           Mason, Phillip, The League of American Wheelmen and the Good Roads Movement 1890-1905, M.A. Thesis, The American University, 1957

           National Old Trails Map - Automobile Club of Southern California